Improvement in rolling angle-iron



NiTn STATES Joan L. LEWIS, or PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN RGLLING ANGLE-IRON.`

To all whom z' 71mg/ concern.-

Be it known that I, JOI-IN L. LEWIS, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Rolling Angle- Iron `and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to theaccom panying drawings, forming a part of thisspecification, in which* Figure l represents a front elevation of therollers which I use in rolling angle-iron. Fig. 2 is a transversevertical section of the same. Figs. 3, 4, and 5 are diagramsillustratingthe dilference between the usual and between my improved mode of rollingangle-iron.

Similar letters of reference in the several views indicate correspondingparts.

This invention consists in the employment or use,in rolling angleiron,ofrollers with hat faces and a central triangular ridge or groove in sucha manner that the bar from which the angleiron is to be rolled can beintroduced between the rollersilat instead of cornerwise, and both sidesof the angle-iron when finished run parallel to the layers ot' theoriginal bar and not crosswise, as is inevitably the case with one sideof angle-iron rolled in the ordinary manner; also, in the arrangement ofiianges projecting at right angles above or beyond the face of one ofeach pair of rollers in such a manner that the edges of the iron duringthe process of rolling are protected, andangleiron with sharp, squareedges can be produced.

To enable others skilled in the art to make and use my invention, I.will proceed to describe it. j

A A' B B' C C' D D' represent a series of rollers which have theirbearings ina common frame, E, theI rollers A B C D being` on one and therollers A' B' G' D' on another shaft- The roller A is made with a flatface, a., provided with a triangular central ridge, dit, and thecorresponding roller, A', is also made with a flat tace, a',corresponding in width to the face ofthe roller A and with a triangularcentral groove, a'it, just opposite the ridge a* and of correspondingwidth and depth. The second pair of rollers, B B', is the reverse fromthe tirst pair, the upperroller, B, being provided with a groove, bt,and the lower roller, B', with a ridge, b'ibetween the fiat faces b `andb', respectively. The third pair of rollers, G C', are similar to therst pair, the upper roller, G, being .made with a hat face, c, and ridge0*, and the lower roller, C', with a flat face, c', and groove c'i'f'.

The Iinishing-rollers D D' are similar to the ordinary rollers forrolling angle-iron without a at face, the upper roller, D, forming arectangular ridge corresponding to the groove D', thatoccupies theentire face ofthe lower roller.

The rollers A' B' O' are provided with ilanges d,which project above theat faces a b' c' and beyond theedges of the corresponding rollers, A BG. These flanges are at right angles to the ilat faces of the rollers,and they protect the edges ofthe iron and prevent said edges fromgetting round. The advantages of my rollers and their superiority overordinary rollers will be best understood by referring to the diagramsrepresented in Figs. 3, 4, and 5.

The bars E, from which an gle-iron is rolled, are composed of a seriesof layers, e, as indicated by dotted lines in Figs. 4 and 5, and theyare generally square, or nearly so.

In rolling angleiron with the ordinary rollers, said bars are introducedcornerwise, as clearly shown in Fig. 3. In fact, it is impossible tointroduce them in any other way, because they do not lay tlat on anypart of the lower roller. The angle-iron F produced by suchrollers,therefore,will be in such relation t0 the original bar that thewin g f is parallel and the win g f' at right angles to the originallayers of said bar, (shown in Fig. 4,) and from its relation to saidlayers the win g f' is lia-ble to break, and a poor article is theresult.

With my rollers the original bar can beintroduced tlat, becauseit laysaton the face of the rst roller, A', and when the bar leaves the rollersC G' it has assumed the shape shown in Fig. 5. The rollers D D' simplyturn up the two wings. The relation of the an gle-iron F' t0 the barE,theretore,willbe such that both its wings are parallel to the originallayers of the bar, and a strong and durable article is produced.

What I claim as new, and desire to secure4 by Letters Patent, is-

So constructing rolls for rolling angle-iron as that the pile77constituting the fagot shall in said rolls, the Wings or sides shall b eturned be caught between the rolls flat instead of up and finished withthe grain comformable l eornerwise, and so rolling it as that one-halfto the layers of the original bar. of both sides 0r Wings shall remainparallel JOHN L. LEWIS. 4with* the face or top of the pile until veryWitnesses:

nearly reduced toits proper thickness, when by ANTHONY LEWIS, .v passingit through a plain rectangular groove HENDERSON Ross.

in J

